Device for holding cylinders while attaching card-clothing thereto



(No Model.)

I. E. OOMINS.

DEVICE FOR HOLDING CYLINDERS WHILE ATTAGHINGGARD CLOTHING THERETO.

a neg ted June 4 No. 404,685. j o

PhuloLHhugrapber, Wuhingtun. u c

UNITE STATES PATENT ()EFICE.

IRVING E. COMINS, OF IVORCESTER, MASSACHUSETTS.

DEVICE FOR HOLDING CYLINDERS WHILE ATTACHING CARD-CLOTHING THEREIO.

SPECIFICATION forming part of Letters Patent No. 404,685, dated June 4, 1889.

Application filed May 19, 1888- a specification.

My invention relates to card-cylinder holders.

The object of my invention is to prevent the main cylinder of a carding-machine from turning or rotating in the direction in which the card-clothing is being stretched upon the main cylinder during the operation of clothing the said cylinder, and it also permits the main cylinder to rotate freely in the opposite direction when desired.

My invention consists, generally, in a holding mechanism for the sh aft of the main cylinder of a carding-machine, which will allow the same to revolve in one direction, while the holding mechanism prevents it and the cylinder from revolving in the opposite direction, all as more particularly hereinafter described, and as specified in the claims. The card-clothing has to be renewed frequently, and when put upon the main cylinder has to be stretched the most possible. It is desirable, therefore, to have an attachment for the carding-machine which will hold .the main cylinder perfectly rigid, so that it may not move in the direction that the clothing is stretched, but may move freely in the opposite direction, in order that when one sheet of clothing is completely nailed in its place the main cylinder may be revolved to the proper position for commencing the attachment of the next sheet.

In the accompanying drawings, Figure 1 is a perspective view of the main cylinder end of a carding-machine having my improved card-cylinder holder attached to the maincylinder shaft. Fig. 2 is a plan view of the cylinder-holder. Fig. 3 is a side elevation of the same. Fig. 4 is a longitudinal section through the line 00 m of Fig. 2. Fig. 5 is a longitudinal section through the line 1 y in Fig. 3. Fig. 6 is a modification.

1 is a sleeve, (see Figs. 2 and 5,) which is adapted to encircle the shaft 16 of the main Serial No. 274,444. (No model.)

Surrounding the sleeve 1 is a ratchet-collar 4, Fig. 2.

cast upon the sleeve or fastened to it in any appropriate manner. Loosely surrounding the sleeve 1 on either side of the ratchet 4are two rings 20 20, and attached to each of said rings 20 20 is a bar 2.

7 7 are set-screws, (see Fig. 2,) which, pass ing through the sleeve 1 outside of the rings 20 20, are adapted to secure the sleeve firmly to the cylinder-shaft 16. It is desirable that the ends of the set-screws which engage with the shaft should be concave, as this greatly increases their holding capacity. If the setscrews do not sufficiently hold the sleeve 1 to the shaft 16, aslight portion of the shaft may be flattened and the screws set up upon this fiat surface.

10 and 11, Fig. 2, are bolts,which are adapted to hold the rings 20 20 in place, together with the bars 2 2. Incloscd between the two bars 2 2, and preferably pivoted by the bolt 10, is a pawl 3, (see Figs. 2 and 4,) adapted to engage with the ratchet 4. The bars 2 2 and rings 20 2O serve as a movable support for said pawl. Extending from the back of this pawl is a shoulder 19. (See Fig. 3.) 6 is a flat or how spring secured to one of the bars 2 2 and adapted to bear against the said shoulder, so as to retain the pawl 3 in engagement with the ratchet.

9 is a handle, preferably of steel, secured to the pawl 3, (see Fig. 3,) and is adapted for disengaging the pawl 3 from the ratchet 4.

18 is a rod, which is pivoted to the bars 2 2 near their outer ends by the bolt 11, the lower end of said rod being adapted to rest upon the floor. This rod 18 is adapted to support the bars 2 2 and the pawl 3, and to serve as a brace to prevent said bars 2 2, pawl 3, ratchet 4, sleeve 1, and shaft 16, to which said sleeve 1 is secured, from rotating in the direction indicated by the arrow (4 in Fig. 1.

In Fig. 6 the periphery of the collar 4 is simply roughened instead of having regular teeth, and in place of the ordinary pawl, as shown in Figs. 1, 2, and 4, an eccentric with a roughened periphery is shown. This is to allow it to impinge upon the face of the collar 4, Fig. 6, and hold the sleeve 1 and shaft 16 at any desirable point. This form of construction has this advantage over the one illustrated in 2, 3, and 4?, that the main cylinder can be moved short distances so long as they are appreciable. In the case of the ratchet, however, it is necessary to move the cylinder a space represented by the distance between the ratchet-teeth.

The operation of my improved cylinderholder is as follows: In all carding-machines the shaft of the main cylinder projects beyond the bearings, and upon this extension of the shaft (see 16 in Fig. 1) the sleeve 1 is slipped, and when the attachment is in practically the position indicated in Fig. 1, with the end of the rod 18 resting upon the floor, the sleeve 1. is secured firmly to the shaft 16 by the set-screws 7 7. In this position the shaft and main cylinder and sleeve are free to revolve in the direction indicated by the arrow Z) in Fig. 1, as the teeth of the ratchet 4: slip by the pawl 3.

In Fig. 1, A represents the main cylinder, and 0 several pieces or-shcets of the clothing stretched upon its periphery, while 0' represents a piece or sheet of the clothing which is about to be stretched, having been securely lacked longitudinally along the line Z.

The stretching-pinchers 17 nip the lower edge It of the clothing and pull it in the direction of the arrow a. This pulling or stretching tends to turn or rotate the cylinder in a similar direction. To avoid this diiliculty is the object of my invention, and it is accomplished in the following manner: The sleeve 1 and ratchet a. being secured to the shaft 10, Fig. l, of the main cylinder, it cannot rotate in the direction of the arrow a, as the ratchet 4. will be locked by the pawl 3, which is held firmly in position by its supporting-bars 2 2 and the brace 18, which rests upon the floor. 'Ky bearing dpwn upon the handle 9 the pawl 3 would be disengaged from the ratchet 4, and the cylinder A may be revolved in the direction of the arrow a, if desired.

llaving fully described my invention, I claim- 1. A card-cylinder holder consisting of a sleeve for attachment to the shaft of the main cylinder, a collar having a roughened periphery secured to said sleeve, a retaining device for engagement with said collar, a movable support for said retaining device, and means for sustaining said support, all substantially as shown and described.

2. A card-cylinder holder consisting of a sleeve with a collar havingatooth ed or ratchet periphery attached to said sleeve, a pawl for engagement with said ratchet, a movable support for said pawl, and means for sustaining said support, all substantially as shown and described.

3. A card-cylinder holder consisting of a sleeve for attachment to the shaft of the main cylinder, a collar having a roughened periphery secured to said sleeve, a retaining device for engagement with said collar, a movable support for said retaining device, means for sustaining said support, and a bar for releasing the retaining device from engagement with the collar, all substantially as shown and described.

4:. The combination of the sleeve 1, having a collar with a roughened periphery attached thereto, the bars 2, having the rings 20, a retaining device for engagement with said collar, and a support for said bars and retaining device, all substantially as shown and described.

5. The combination of the sleeve 1, having a collar with a roughened periphery attached thereto, the bars 2, having the rings 20, a retaining device for engagement with said collar, a support for said bars and retaining device, and the bar 9, all substantially as shown and described.

6. The combination of the sleeve 1, having a collar with a roughened peripheryattached thereto, the bars 2, having the rings 20, a retaining device for engagement with said collar, and the brace 18, all substantially as shown and described.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, on this 20th day of April, A. I). 1888.

IRVING E. COMINS.

\Vi tnesses:

M. BARRY OWEN, GEO. l BLAKE. 

